I just never understand how it works
In: Biology
A dog’s nose contains up to 300 million olfactory receptors (humans have about 6 million), and the part of their brain devoted to smell is about 40 times greater than ours. So, just how far can dogs smell? In perfect conditions, dogs are reported to smell things as far as 20 km (12.4 miles) away.
Different animals have different amounts of olfactory and different % of their brain devoted to smelling.
Latest Answers